DROP AGGREGATE — remove an aggregate function
DROP AGGREGATE [ IF EXISTS ]
aggregate_signature) [, ...] [ CASCADE | RESTRICT ] where
aggregate_signatureis: * | [
argtype[ , ... ] | [ [
argtype[ , ... ] ] ORDER BY [
argtype[ , ... ]
DROP AGGREGATE removes an
existing aggregate function. To execute this command the
current user must be the owner of the aggregate function.
Do not throw an error if the aggregate does not exist. A notice is issued in this case.
The name (optionally schema-qualified) of an existing aggregate function.
The mode of an argument:
VARIADIC. If omitted, the default is
The name of an argument. Note that
DROP AGGREGATE does not actually pay any
attention to argument names, since only the argument data
types are needed to determine the aggregate function's
An input data type on which the aggregate function
operates. To reference a zero-argument aggregate
* in place
of the list of argument specifications. To reference an
ordered-set aggregate function, write
ORDER BY between the direct and
aggregated argument specifications.
Automatically drop objects that depend on the aggregate function (such as views using it), and in turn all objects that depend on those objects (see Section 5.13).
Refuse to drop the aggregate function if any objects depend on it. This is the default.
Alternative syntaxes for referencing ordered-set aggregates are described under ALTER AGGREGATE.
To remove the aggregate function
myavg for type
DROP AGGREGATE myavg(integer);
To remove the hypothetical-set aggregate function
myrank, which takes an arbitrary
list of ordering columns and a matching list of direct
DROP AGGREGATE myrank(VARIADIC "any" ORDER BY VARIADIC "any");
To remove multiple aggregate functions in one command:
DROP AGGREGATE myavg(integer), myavg(bigint);
There is no
statement in the SQL standard.
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